Water, Sewage and Industrial Wastewater Treatment System

Hitachi Zosen has extensive experience and achievements in the fields of potable water, sewage, and industrial wastewater treatment. The facilities and equipment we provide cover various processes and meet client needs.
Water and Industrial Water Treatment System

Japan offers widespread access to potable water, and yet faces demand for a supply system with enhanced stability against droughts and natural disasters. We provide an integrated system, from water intake to purification, and conduct the surveys, design, and construction.

Sewage Treatment System

We contribute to a sound material cycle through energy saving and recycling technologies.
We propose optimal, tailored treatment plans for sewage water treatment plants according to the capacity, vision and needs of the municipality.
Water Treatment Facility

- Grit Removal Equipment
- Fine Screening Equipment “AD Fine Mesh Band Screen”,Screen “AD Screening Unit”,
- Chain-type Screen
- Screening Dehydrator
- Primary Sedimentation Tank
- Chain-type Sludge Collector made of Resin “AP Chain and Sprocket wheel”,Monorail-type Sludge Collector
- Notch-type Sludge Collector
- Circulation-type Sludge Collector
- Reactor
- Mechanical Aerator and Circulator Draft Tube Aerator “DTA”,Top driver agitator Draft Tube Circulator “DTC”,Super-fine Bubble Diffuser “AD Membrane Diffuser”,Membrane Separation Bioreactor “MBR System”
- Elevated Aeration Device
- Antifoaming Spray “Spray Nozzle”,Scum Breaker “Scum Crush Nozzle”,Dissolved Oxygen Concentration Meter “DO Sensor”
- Final Sedimentation Tank
- Chain-type Sludge Collector made of Resin “AP Chain and Sprocket wheel”,Monorail-type Sludge Collector
- Notch-type Sludge Collector
- Circulation-type Sludge Collector
- Advanced Wastewater Treatment
- Up Flow Sand Filtration
- Biological Filtration
- Pressure Sand Filtration
- Traveling Bed Sand Filtration
- High-Rate Fiber Filtration “MARIMO”
- Disinfection
- Ultraviolet Disinfection
Sludge Treatment Facility

- Sludge Concentration
- Centrifugal Thickener
- Gravity Thickener
- Belt-type Filtration Thickener “Aqua Belt Ace”
- Sludge Digestion
- Gas Recirculation type
- Mechanical Recirculation type
- Sludge Dewatering
- Belt Press Dewatering Machine
- High-Efficiency Centrifugal Dewatering Machine
- Filter Press
- Compost
Other Equipment

- Pumps
- Fresh Clean Pump System
- Pump Gate
- Deodorizer
- Biological Deodorizer
- Activated Carbon Deodorizer
- CSO Control
- Simplified Fiber Filtration for CSO Control
- Fine Screening Equipment “AD Fine Mesh Band Screen”
- Phosphorus Recovery
- Phosphorus Recovery System “HAP System”・Phosphorus-as-Struvite Recovery System “PHOSNIX”
Industrial Wastewater Treatment System

We provide highly reliable treatment systems for various industrial uses such as at automotive, food processing, and pharmaceutical plants, employing equipment tailored to each process according to the quality of wastewater and the level of treatment required.
- ・Automobile Factory Wastewater Treatment Facility
- ・Wet Air Oxidation Facility
- ・High Concentration Organic Wastewater Treatment Facility “UASB/EGSB System”
- ・Water-borne Paint Plant Wastewater Treatment Facility
- ・Food Plant Wastewater Treatment Facility
- ・Pharmaceutical Plant Wastewater Treatment Facility
- ・Chemical Plant Wastewater Treatment Facility
- ・Aquarium Water Treatment Facility
AOM (after-sales service, operation and maintenance)

We have extensive experience in comprehensive operational and maintenance work, covering day-to-day activities and ideas for boosting efficiency and reducing running costs. We also provide after-services such as repair, overhaul, and chemical supply.
- Solutions services